186 Dr. A* Hall on the Mammals and Birds 



Parus, Americana, Trocbilus, Trichas, and probably Azurea, 

 These birds are Lnown to migrate as far North as, and 

 in one or two cases, beyond Canada, and they are to be discovered 

 in this District. As the object of this paper is not to speculate 

 upon what might be found, but to give descriptions of what really 

 has been found in this District, I refrain from any further re- 

 marks on this tribe at present. 



Genus Regulus. 



Gen. char. Bill straight, slender, deeper than broad, com- 

 pressed from the base, narrowed in the middle, with somewhat 

 incurved edges, and furnished with nuchal bristles ; upper man- 

 dible slightly notched and curved at the tip ; nostrils basal, oval, 

 and half closed by a membrane ; 3rd primary longest ; 1st and 

 Tth equal ; tarsus longer than the middle toe ; tail notched. 

 R, calendula. Ruby-crowned "Wren. 

 Sylvia calendula of Wilson ! 

 R. calendula. Baird. 



v.s.p. Bill and legs brown ; irides black ; eggs unknown. 



Dorsal aspect. Olive green, darker on the frontlet ; on the pos- 

 terior part of the crown an oval vermilion spot ; eyelids pale yel- 

 low ; tail and wing feathers clove brown, with yellow edgings on the 

 outer vanes of the quills of the former, and primaries of the lat- 

 ter. Inner vanes of all, and outer vanes of the secondaries edged 

 with white ; greater and smaller wing coverts tipped with white. 



Ventral aspect. Yellowish-white throughout ; spureous wing 

 feather nearly an inch long. 



3rd and 4th primaries equal ; 2nd and 5th equal ; 1st a little 

 shorter than the 6th, but longer than the 7th ; tail subfurcate. 

 Length 4 inches ; alar breadth about 6 J inches. The female and 

 young bird want the vermilion spot, and are otherwise more som- 

 bre. 



R, cristatus. Golden-crested Wren. 

 Sylvia regulus of Wilson ! 

 R. satrapa. Baird. 



D.c. Bill black ; legs brownish-yellow ; feet and claws yellow ; 

 irides hazel ; eggs 6 to 12, yellowish-white spotted with red. 



Dorsal aspect. Olive yellow inclining to ash on the nape and 

 sides of neck. A white line from the nostril, proceeds over the 

 eyes, and terminates above the auriculars. Above this passes a 

 broadish stripe of black, both stripes meeting on the frontlet ; 

 trown of the head rich flame colour. A black line from mandible 



